dxx-rebirth/arch/dos/allg_snd/internal.h
2006-03-20 17:12:09 +00:00

530 lines
22 KiB
C
Executable file

/* ______ ___ ___
* /\ _ \ /\_ \ /\_ \
* \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___
* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
* /\____/
* \_/__/
* By Shawn Hargreaves,
* 1 Salisbury Road,
* Market Drayton,
* Shropshire,
* England, TF9 1AJ.
*
* Some definitions for internal use by the library code.
* This should not be included by user programs.
*
* See readme.txt for copyright information.
*/
#ifndef INTERNAL_H
#define INTERNAL_H
#include "allegro.h"
#ifdef DJGPP
#include "interndj.h"
#else
#include "internli.h"
#endif
#include <stdio.h>
#include <dos.h>
#define rest delay
#define PACKFILE FILE
#define pack_fopen fopen
#define pack_fputs fputs
#define pack_fread(x,y,z) fread(x,1,y,z)
#define pack_fclose fclose
#define pack_getc(f) fgetc(f)
#define pack_igetw(f) (fgetc(f) | (fgetc(f) << 8))
#define pack_igetl(f) (pack_igetw(f) | (pack_igetw(f) << 16))
#define pack_mgetw(f) ((fgetc(f) << 8) | fgetc(f))
#define pack_mgetl(f) ((pack_mgetw(f) << 16) | pack_mgetw(f))
#define pack_feof(f) feof(f)
#define file_exists(n,x,z) (file_size(n)!=-1)
#define F_READ "rb"
#define F_WRITE "wb"
char *pack_fgets(char *p, int max, PACKFILE *f);
long file_size(const char *n);
char *get_filename(const char *s);
char *get_extension(const char *s);
void put_backslash(char *n);
/* flag for how many times we have been initialised */
extern int _allegro_count;
/* some Allegro functions need a block of scratch memory */
extern void *_scratch_mem;
extern int _scratch_mem_size;
__INLINE__ void _grow_scratch_mem(int size)
{
if (size > _scratch_mem_size) {
size = (size+1023) & 0xFFFFFC00;
_scratch_mem = realloc(_scratch_mem, size);
_scratch_mem_size = size;
}
}
/* list of functions to call at program cleanup */
void _add_exit_func(void (*func)());
void _remove_exit_func(void (*func)());
/* various bits of mouse stuff */
void _set_mouse_range();
extern BITMAP *_mouse_screen;
/* various bits of timer stuff */
extern int _timer_use_retrace;
extern volatile int _retrace_hpp_value;
/* asm joystick polling routine */
int _poll_joystick(int *x, int *y, int *x2, int *y2, int poll_mask);
/* caches and tables for svga bank switching */
extern int _last_bank_1, _last_bank_2;
extern int *_gfx_bank;
/* bank switching routines */
void _stub_bank_switch();
void _stub_bank_switch_end();
/* stuff for setting up bitmaps */
typedef struct _GFX_MODE_INFO
{
int w, h;
int bpp;
int bios_num;
int bios_int;
int (*setter)(int w, int h, int bpp);
} _GFX_MODE_INFO;
void _check_gfx_virginity();
BITMAP *_gfx_mode_set_helper(int w, int h, int v_w, int v_h, int color_depth, GFX_DRIVER *driver, int (*detect)(), _GFX_MODE_INFO *mode_list, void (*set_width)(int w));
BITMAP *_make_bitmap(int w, int h, unsigned long addr, GFX_DRIVER *driver, int color_depth, int bpl);
void _sort_out_virtual_width(int *width, GFX_DRIVER *driver);
GFX_VTABLE *_get_vtable(int color_depth);
extern int _sub_bitmap_id_count;
#define BYTES_PER_PIXEL(bpp) (((int)(bpp) + 7) / 8)
int _color_load_depth(int depth);
BITMAP *_fixup_loaded_bitmap(BITMAP *bmp, PALETTE pal, int bpp);
/* truecolor pixel blending information */
extern BLENDER_MAP *_blender_map15;
extern BLENDER_MAP *_blender_map16;
extern BLENDER_MAP *_blender_map24;
extern int _blender_col_15;
extern int _blender_col_16;
extern int _blender_col_24;
extern int _blender_col_32;
extern int _blender_alpha;
/* VGA register access routines */
void _vga_vsync();
void _vga_set_pallete_range(PALLETE p, int from, int to, int vsync);
extern int _crtc;
/* _read_vga_register:
* Reads the contents of a VGA register.
*/
__INLINE__ int _read_vga_register(int port, int index)
{
if (port==0x3C0)
inportb(_crtc+6);
outportb(port, index);
return inportb(port+1);
}
/* _write_vga_register:
* Writes a byte to a VGA register.
*/
__INLINE__ void _write_vga_register(int port, int index, int v)
{
if (port==0x3C0) {
inportb(_crtc+6);
outportb(port, index);
outportb(port, v);
}
else {
outportb(port, index);
outportb(port+1, v);
}
}
/* _alter_vga_register:
* Alters specific bits of a VGA register.
*/
__INLINE__ void _alter_vga_register(int port, int index, int mask, int v)
{
int temp;
temp = _read_vga_register(port, index);
temp &= (~mask);
temp |= (v & mask);
_write_vga_register(port, index, temp);
}
/* _vsync_out_h:
* Waits until the VGA is not in either a vertical or horizontal retrace.
*/
__INLINE__ void _vsync_out_h()
{
do {
} while (inportb(0x3DA) & 1);
}
/* _vsync_out_v:
* Waits until the VGA is not in a vertical retrace.
*/
__INLINE__ void _vsync_out_v()
{
do {
} while (inportb(0x3DA) & 8);
}
/* _vsync_in:
* Waits until the VGA is in the vertical retrace period.
*/
__INLINE__ void _vsync_in()
{
if (_timer_use_retrace) {
int t = retrace_count;
do {
} while (t == retrace_count);
}
else {
do {
} while (!(inportb(0x3DA) & 8));
}
}
/* _write_hpp:
* Writes to the VGA pelpan register.
*/
__INLINE__ void _write_hpp(int value)
{
if (_timer_use_retrace) {
_retrace_hpp_value = value;
do {
} while (_retrace_hpp_value == value);
}
else {
do {
} while (!(inportb(0x3DA) & 8));
_write_vga_register(0x3C0, 0x33, value);
}
}
int _test_vga_register(int port, int index, int mask);
int _test_register(int port, int mask);
void _set_vga_virtual_width(int old_width, int new_width);
/* current drawing mode */
extern int _drawing_mode;
extern BITMAP *_drawing_pattern;
extern int _drawing_x_anchor;
extern int _drawing_y_anchor;
extern unsigned int _drawing_x_mask;
extern unsigned int _drawing_y_mask;
/* graphics drawing routines */
void _normal_line(BITMAP *bmp, int x1, int y1, int x2, int y2, int color);
void _normal_rectfill(BITMAP *bmp, int x1, int y1, int x2, int y2, int color);
int _linear_getpixel8(struct BITMAP *bmp, int x, int y);
void _linear_putpixel8(struct BITMAP *bmp, int x, int y, int color);
void _linear_vline8(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _linear_hline8(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _linear_draw_sprite8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_v_flip8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_h_flip8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_vh_flip8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_trans_sprite8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_lit_sprite8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_draw_rle_sprite8(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_trans_rle_sprite8(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_lit_rle_sprite8(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
void _linear_draw_character8(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_textout_fixed8(struct BITMAP *bmp, void *f, int h, unsigned char *str, int x, int y, int color);
void _linear_blit8(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_blit_backward8(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_masked_blit8(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_clear_to_color8(struct BITMAP *bitmap, int color);
#ifdef ALLEGRO_COLOR16
void _linear_putpixel15(struct BITMAP *bmp, int x, int y, int color);
void _linear_vline15(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _linear_hline15(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _linear_draw_trans_sprite15(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_lit_sprite15(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_draw_rle_sprite15(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_trans_rle_sprite15(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_lit_rle_sprite15(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
int _linear_getpixel16(struct BITMAP *bmp, int x, int y);
void _linear_putpixel16(struct BITMAP *bmp, int x, int y, int color);
void _linear_vline16(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _linear_hline16(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _linear_draw_sprite16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_256_sprite16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_v_flip16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_h_flip16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_vh_flip16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_trans_sprite16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_lit_sprite16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_draw_rle_sprite16(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_trans_rle_sprite16(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_lit_rle_sprite16(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
void _linear_draw_character16(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_textout_fixed16(struct BITMAP *bmp, void *f, int h, unsigned char *str, int x, int y, int color);
void _linear_blit16(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_blit_backward16(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_masked_blit16(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_clear_to_color16(struct BITMAP *bitmap, int color);
#endif
#ifdef ALLEGRO_COLOR24
int _linear_getpixel24(struct BITMAP *bmp, int x, int y);
void _linear_putpixel24(struct BITMAP *bmp, int x, int y, int color);
void _linear_vline24(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _linear_hline24(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _linear_draw_sprite24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_256_sprite24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_v_flip24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_h_flip24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_vh_flip24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_trans_sprite24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_lit_sprite24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_draw_rle_sprite24(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_trans_rle_sprite24(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_lit_rle_sprite24(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
void _linear_draw_character24(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_textout_fixed24(struct BITMAP *bmp, void *f, int h, unsigned char *str, int x, int y, int color);
void _linear_blit24(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_blit_backward24(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_masked_blit24(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_clear_to_color24(struct BITMAP *bitmap, int color);
#endif
#ifdef ALLEGRO_COLOR32
int _linear_getpixel32(struct BITMAP *bmp, int x, int y);
void _linear_putpixel32(struct BITMAP *bmp, int x, int y, int color);
void _linear_vline32(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _linear_hline32(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _linear_draw_sprite32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_256_sprite32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_v_flip32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_h_flip32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_sprite_vh_flip32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_trans_sprite32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _linear_draw_lit_sprite32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_draw_rle_sprite32(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_trans_rle_sprite32(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _linear_draw_lit_rle_sprite32(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
void _linear_draw_character32(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _linear_textout_fixed32(struct BITMAP *bmp, void *f, int h, unsigned char *str, int x, int y, int color);
void _linear_blit32(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_blit_backward32(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_masked_blit32(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _linear_clear_to_color32(struct BITMAP *bitmap, int color);
#endif
int _x_getpixel(struct BITMAP *bmp, int x, int y);
void _x_putpixel(struct BITMAP *bmp, int x, int y, int color);
void _x_vline(struct BITMAP *bmp, int x, int y1, int y2, int color);
void _x_hline(struct BITMAP *bmp, int x1, int y, int x2, int color);
void _x_draw_sprite(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _x_draw_sprite_v_flip(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _x_draw_sprite_h_flip(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _x_draw_sprite_vh_flip(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _x_draw_trans_sprite(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y);
void _x_draw_lit_sprite(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _x_draw_rle_sprite(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _x_draw_trans_rle_sprite(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y);
void _x_draw_lit_rle_sprite(struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color);
void _x_draw_character(struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color);
void _x_textout_fixed(struct BITMAP *bmp, void *f, int h, unsigned char *str, int x, int y, int color);
void _x_blit_from_memory(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_blit_to_memory(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_blit(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_blit_forward(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_blit_backward(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_masked_blit(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
void _x_clear_to_color(struct BITMAP *bitmap, int color);
/* asm helper for stretch_blit() */
void _do_stretch(BITMAP *source, BITMAP *dest, void *drawer, int sx, fixed sy, fixed syd, int dx, int dy, int dh, int color_depth);
/* information for polygon scanline fillers */
typedef struct POLYGON_SEGMENT
{
fixed u, v, du, dv; /* fixed point u/v coordinates */
fixed c, dc; /* single color gouraud shade values */
fixed r, g, b, dr, dg, db; /* RGB gouraud shade values */
float z, dz; /* polygon depth (1/z) */
float fu, fv, dfu, dfv; /* floating point u/v coordinates */
unsigned char *texture; /* the texture map */
int umask, vmask, vshift; /* texture map size information */
int seg; /* destination bitmap selector */
} POLYGON_SEGMENT;
/* polygon scanline filler functions */
void _poly_scanline_flat(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_gcol(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_grgb(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_atex(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_ptex(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_atex_mask(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_ptex_mask(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_atex_lit(unsigned long addr, int w, POLYGON_SEGMENT *info);
void _poly_scanline_ptex_lit(unsigned long addr, int w, POLYGON_SEGMENT *info);
/* sound lib stuff */
extern int _digi_volume;
extern int _midi_volume;
extern int _flip_pan;
extern int (*_midi_init)();
extern void (*_midi_exit)();
int _midi_allocate_voice(int min, int max);
extern volatile long _midi_tick;
int _digmid_find_patches(char *dir, char *file);
#define VIRTUAL_VOICES 256
typedef struct /* a virtual (as seen by the user) soundcard voice */
{
SAMPLE *sample; /* which sample are we playing? (NULL = free) */
int num; /* physical voice number (-1 = been killed off) */
int autokill; /* set to free the voice when the sample finishes */
long time; /* when we were started (for voice allocation) */
int priority; /* how important are we? */
} VOICE;
extern VOICE _voice[VIRTUAL_VOICES];
typedef struct /* a physical (as used by hardware) soundcard voice */
{
int num; /* the virtual voice currently using me (-1 = free) */
int playmode; /* are we looping? */
int vol; /* current volume (fixed point .12) */
int dvol; /* volume delta, for ramping */
int target_vol; /* target volume, for ramping */
int pan; /* current pan (fixed point .12) */
int dpan; /* pan delta, for sweeps */
int target_pan; /* target pan, for sweeps */
int freq; /* current frequency (fixed point .12) */
int dfreq; /* frequency delta, for sweeps */
int target_freq; /* target frequency, for sweeps */
} PHYS_VOICE;
extern PHYS_VOICE _phys_voice[DIGI_VOICES];
#define MIXER_DEF_SFX 8
#define MIXER_MAX_SFX 32
int _mixer_init(int bufsize, int freq, int stereo, int is16bit, int *voices);
void _mixer_exit();
void _mix_some_samples(unsigned long buf, unsigned short seg, int issigned);
void _mixer_init_voice(int voice, SAMPLE *sample);
void _mixer_release_voice(int voice);
void _mixer_start_voice(int voice);
void _mixer_stop_voice(int voice);
void _mixer_loop_voice(int voice, int loopmode);
int _mixer_get_position(int voice);
void _mixer_set_position(int voice, int position);
int _mixer_get_volume(int voice);
void _mixer_set_volume(int voice, int volume);
void _mixer_ramp_volume(int voice, int time, int endvol);
void _mixer_stop_volume_ramp(int voice);
int _mixer_get_frequency(int voice);
void _mixer_set_frequency(int voice, int frequency);
void _mixer_sweep_frequency(int voice, int time, int endfreq);
void _mixer_stop_frequency_sweep(int voice);
int _mixer_get_pan(int voice);
void _mixer_set_pan(int voice, int pan);
void _mixer_sweep_pan(int voice, int time, int endpan);
void _mixer_stop_pan_sweep(int voice);
void _mixer_set_echo(int voice, int strength, int delay);
void _mixer_set_tremolo(int voice, int rate, int depth);
void _mixer_set_vibrato(int voice, int rate, int depth);
/* dummy functions for the NoSound drivers */
int _dummy_detect();
int _dummy_init(int voices);
void _dummy_exit();
int _dummy_mixer_volume(int volume);
void _dummy_init_voice(int voice, SAMPLE *sample);
void _dummy_noop1(int p);
void _dummy_noop2(int p1, int p2);
void _dummy_noop3(int p1, int p2, int p3);
int _dummy_get_position(int voice);
int _dummy_get(int voice);
void _dummy_raw_midi(unsigned char data);
int _dummy_load_patches(char *patches, char *drums);
void _dummy_adjust_patches(char *patches, char *drums);
void _dummy_key_on(int inst, int note, int bend, int vol, int pan);
/* from djgpp's libc, needed to find which directory we were run from */
extern int __crt0_argc;
extern char **__crt0_argv;
#endif /* ifndef INTERNAL_H */